公开(公告)号：US11107268B2

公开(公告)日：2021-08-31

申请号：US16556005

申请日：2019-08-29

申请人： Cognex Corporation

发明人： Marcus Große ,  Martin Schaffer ,  Simon Willeke ,  Bastian Harendt

IPC分类号： G06T15/20 ,  G06T7/593 ,  G06K9/00 ,  H04N13/239 ,  H04N13/243 ,  H04N13/00

摘要： The techniques described herein relate to methods, apparatus, and computer readable media for efficiently processing data of initial correspondence assignments, e.g., for three-dimensional reconstruction of an object. In some aspects, the system includes a processor configured to perform the acts of receiving a first set of images of a scene and a second set of images of the scene, determining a first pixel fingerprint based on the first set of images and a second pixel fingerprint based on the second set of images, generating a first binary pixel fingerprint based on the first pixel fingerprint and a second binary pixel fingerprint based on the second pixel fingerprint, and determining whether there exists a stereo correspondence between the first pixel fingerprint and the second pixel fingerprint at least in part based on comparing the first binary pixel fingerprint and the second binary pixel fingerprint.

公开(公告)号：US20200082605A1

公开(公告)日：2020-03-12

申请号：US16556005

申请日：2019-08-29

申请人： Cognex Corporation

发明人： Marcus Große ,  Martin Schaffer ,  Simon Willeke ,  Bastian Harendt

IPC分类号： G06T15/20 ,  G06T7/593 ,  G06K9/00 ,  H04N13/243 ,  H04N13/239

摘要： The techniques described herein relate to methods, apparatus, and computer readable media for efficiently processing data of initial correspondence assignments, e.g., for three-dimensional reconstruction of an object. In some aspects, the system includes a processor configured to perform the acts of receiving a first set of images of a scene and a second set of images of the scene, determining a first pixel fingerprint based on the first set of images and a second pixel fingerprint based on the second set of images, generating a first binary pixel fingerprint based on the first pixel fingerprint and a second binary pixel fingerprint based on the second pixel fingerprint, and determining whether there exists a stereo correspondence between the first pixel fingerprint and the second pixel fingerprint at least in part based on comparing the first binary pixel fingerprint and the second binary pixel fingerprint.

公开(公告)号：US20190325594A1

公开(公告)日：2019-10-24

申请号：US16392262

申请日：2019-04-23

申请人： Cognex Corporation

发明人： Marcus Große ,  Martin Schaffer ,  Simon Willeke

IPC分类号： G06T7/536 ,  G06K9/62 ,  H04N13/122 ,  H04N13/139 ,  G06T1/00 ,  G06T7/593 ,  G06T7/521

摘要： In some aspects, the techniques described herein relate to systems, methods, and computer readable media for data pre-processing for stereo-temporal image sequences to improve three-dimensional data reconstruction. In some aspects, the techniques described herein relate to systems, methods, and computer readable media for improved correspondence refinement for image areas affected by oversaturation. In some aspects, the techniques described herein relate to systems, methods, and computer readable media configured to fill missing correspondences to improve three-dimensional (3-D) reconstruction. The techniques include identifying image points without correspondences, using existing correspondences and/or other information to generate approximated correspondences, and cross-checking the approximated correspondences to determine whether the approximated correspondences should be used for the image processing.

公开(公告)号：US11593954B2

公开(公告)日：2023-02-28

申请号：US17369826

申请日：2021-07-07

申请人： Cognex Corporation

发明人： Marcus Große ,  Martin Schaffer ,  Simon Willeke

IPC分类号： G06K9/00 ,  G06T7/32 ,  G06T7/593 ,  G06T7/521 ,  H04N13/00 ,  G06T7/90 ,  G06T7/536 ,  H04N13/139 ,  H04N13/122 ,  G06T1/00 ,  G06V10/75

摘要： In some aspects, the techniques described herein relate to systems, methods, and computer readable media for data pre-processing for stereo-temporal image sequences to improve three-dimensional data reconstruction. In some aspects, the techniques described herein relate to systems, methods, and computer readable media for improved correspondence refinement for image areas affected by oversaturation. In some aspects, the techniques described herein relate to systems, methods, and computer readable media configured to fill missing correspondences to improve three-dimensional (3-D) reconstruction. The techniques include identifying image points without correspondences, using existing correspondences and/or other information to generate approximated correspondences, and cross-checking the approximated correspondences to determine whether the approximated correspondences should be used for the image processing.

公开(公告)号：US20210407110A1

公开(公告)日：2021-12-30

申请号：US17369826

申请日：2021-07-07

申请人： Cognex Corporation

发明人： Marcus Große ,  Martin Schaffer ,  Simon Willeke

IPC分类号： G06T7/32 ,  G06T7/593 ,  G06T7/521 ,  H04N13/00 ,  G06T7/90 ,  G06T7/536 ,  H04N13/139 ,  H04N13/122 ,  G06K9/62 ,  G06T1/00

摘要： In some aspects, the techniques described herein relate to systems, methods, and computer readable media for data pre-processing for stereo-temporal image sequences to improve three-dimensional data reconstruction. In some aspects, the techniques described herein relate to systems, methods, and computer readable media for improved correspondence refinement for image areas affected by oversaturation. In some aspects, the techniques described herein relate to systems, methods, and computer readable media configured to fill missing correspondences to improve three-dimensional (3-D) reconstruction. The techniques include identifying image points without correspondences, using existing correspondences and/or other information to generate approximated correspondences, and cross-checking the approximated correspondences to determine whether the approximated correspondences should be used for the image processing.

公开(公告)号：US11069074B2

公开(公告)日：2021-07-20

申请号：US16392262

申请日：2019-04-23

申请人： Cognex Corporation

发明人： Marcus Große ,  Martin Schaffer ,  Simon Willeke

IPC分类号： G06K9/00 ,  G06T7/32 ,  G06T7/593 ,  G06T7/521 ,  H04N13/00 ,  G06T7/90 ,  G06T7/536 ,  H04N13/139 ,  H04N13/122 ,  G06K9/62 ,  G06T1/00

摘要： In some aspects, the techniques described herein relate to systems, methods, and computer readable media for data pre-processing for stereo-temporal image sequences to improve three-dimensional data reconstruction. In some aspects, the techniques described herein relate to systems, methods, and computer readable media for improved correspondence refinement for image areas affected by oversaturation. In some aspects, the techniques described herein relate to systems, methods, and computer readable media configured to fill missing correspondences to improve three-dimensional (3-D) reconstruction. The techniques include identifying image points without correspondences, using existing correspondences and/or other information to generate approximated correspondences, and cross-checking the approximated correspondences to determine whether the approximated correspondences should be used for the image processing.